Home / 20,155,465,710.30-30,233,198,565.45-10,359,945,198.30

Finding the Fourth Proportional to 20,155,465,710.30, 30,233,198,565.45 and 10,359,945,198.30

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Solution

The fourth proportional to 20,155,465,710.30, 30,233,198,565.45 and 10,359,945,198.30 is: 15,539,917,797.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,465,710.30 : 30,233,198,565.45 = 10,359,945,198.30 : x
  2. Step 2: Convert to fraction form
    20,155,465,710.30/30,233,198,565.45 = 10,359,945,198.30/x
  3. Step 3: Cross multiply
    20,155,465,710.30x = 30,233,198,565.45 × 10,359,945,198.30
  4. Step 4: Simplify right side
    20,155,465,710.30x = 313,214,280,307,384,188,928
  5. Step 5: Solve for x
    x = 313,214,280,307,384,188,928/20,155,465,710.30
  6. Step 6: Final answer
    x = 15,539,917,797.45

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.